Improvement in grain-scourers



A SMITH GRAIN SUOURERH- 1 Patented Dec. 20, 1870.

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I can state Pitcairn-t dbffim AUSTIN SMITH, OF VALMONT, COLORADOTERRITORY.

Letters Patent N 0. 110.301. dated December 20, 1870.

IMPROVEMENT IN GRAlN-SCOURERS.

The Schedule referred. to in these Letters Patent and making part of thesame.

To all whom it may concern.

Be it known that I, AIJSTIX SMITH, of Valmont, in the county of Boulderand Territory of Colorado, have invented a new and useful ImprovcmeutiuGrain-Seom'er; and I hereby declare that the following is a full, clear,--and exact description thereof, which will enable others skilledin theart to make and use the same, reference being bad to the accompanyingdrawing forming part of this specification, in which Figure 1 is avertical longitudinal section of my improved machine.

Figure 2 is a vertical cross-section of the same,

.taken through the line a: x, fig. 1.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnish a simple, convenient,inexpensive, and effective machine for cleaning and scouring wheat forgrinding; and

It consists in the construction and combination of the various parts ofthe machine as hereinafter more fully described.

chine.

1; is a shaft, the ends of which revolve 'in bearings in the ends of theframe-work or casing A.

A is the frame-work, box, or casing of the ma square punch diagonallywith the shaft 13, and with their rough edges upward.

The cleaned grain escapes from the machine through the spout F, bywhichit is conducted to the-burs or to some suitable receiver.

The dust-may be allowed to fall to the floor into some suitablereceiver, or into a box, G, placed beneath the perforated bottom E, andin which worksa. shaft, H, having a spiral thread or flange, I, at-

tached to it, by which the dust is conveyed into the spout J, 'by whichit is conducted to some suitable wheels M N, attached to the verticalshaft 0, which may be driven by any convenient power.

It may be observed that the rough edges of the perforated bottom E tendto prevent the grain from beand thus facilitate the operation.

Having thus'described my invention,

Vhat I claim as new, and desire to secure by Letters Patent, is-- e 1.The spiral brush 0 and concave screenE, combined with the spiral flangeD, arranged as and for the purpose described.

i 2. The rotating-scouring brush and concave screen, combined withaspirally-flanged shaft H I, arranged thereunder, in thereceifing-chamber, as and for the purpose described.

'ing carried around by and with the spiral brush 0,

AUSTIN SMITH. \Vitnesses JEROME THOMAS, J nssn HARTLEY.

